Final answer:
Sydney Carton's working routine in Dickens's 'A Tale of Two Cities' includes late-night work at his desk assisted by alcohol, reflecting his intelligence yet self-destructive behavior.
Step-by-step explanation:
The character Sydney Carton's working routine is described in Charles Dickens's novel A Tale of Two Cities. Carton is portrayed as a talented but disreputable English barrister. His work often includes spending long nights at his desk, where he prepares legal briefs and consults law books. These diligent working hours are typically fueled by copious amounts of alcohol, which signifies his self-destructive tendencies. Despite his lackluster demeanor, Carton's work routine shows that he is highly intelligent and capable, though he does not live up to his full potential due to his lack of ambition and general apathy towards life.